12212201137 has 2 divisors, whose sum is σ = 12212201138. Its totient is φ = 12212201136.

The previous prime is 12212201087. The next prime is 12212201173. The reversal of 12212201137 is 73110221221.

Together with next prime (12212201173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7193753856 + 5018447281 = 84816^2 + 70841^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212201137 - 2¹¹ = 12212199089 is a prime.

It is a super-2 number, since 2×12212201137² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12212291137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106100568 + 6106100569.

It is an arithmetic number, because the mean of its divisors is an integer number (6106100569).

Almost surely, 2^12212201137 is an apocalyptic number.

It is an amenable number.

12212201137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212201137 is an equidigital number, since it uses as much as digits as its factorization.

12212201137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 12212201137 its reverse (73110221221), we get a palindrome (85322422358).

The spelling of 12212201137 in words is "twelve billion, two hundred twelve million, two hundred one thousand, one hundred thirty-seven".